Frederick richard simms



(No Model.)

, P. R. SIMMS. WHEEL POR MOTOR GAHSOR OTHER VEHICLES.

' 10,605,022I 'Patented Maysl, 1898.

v UNITED STATES PATENT OFFICE,

FREDERICK RICHARD s`IMMs, oF LONDON, ENG-LAND.

wH EE Fon Moron-CARS oR'oTHER VEHICLES.

SPECIFICATION forming part of Letters Patent No. 605,022, dated May 31, 1898-.

Application filed December 28, 1897. Serial No. 664,067. (No model.)

To l/ZZ whom it may concern:

Be it known that I, FREDERICK RICHARD SIMMS, a subject of the Queen of Great Britain, residing at London, England, have invented new and useful-Improvements in and Con-4 object to provide a whee l adapted'to with. stand greater pressure than wheels as ordinarily constructed and kalso, vto .provide a pneumatic tire which cannot be soeasily.

punctured as pneumatic tires of ordinary construction or which when puncturea shall 'not possess the disadvantages of such ordinary tires. v

According to my inventionI forni the rim of the Wheel (to any part ofwhich the spokes maybe attached) preferably approximately semicircular in cross-section and with lateral flanges or recesses.y In conjunction with thesaid rim I provide an auxiliary or supple-l mentary rim havinglateral anges adapted to t'intothelateral flanges or recesses upon the said wheel-rim. Thellat-eral flanges of the auxiliaryrim are designed to receive lateral ribs or extensions upon the tire, which is formed of a suitable-elastic material and apv proxilnately semicircular in cross-section.

Into the' annular space between the two rims I may introduce an air-tube adapted to be in- .ilated in the ordinary manner, the said tube being preferably split around its outerpe riphery and. the auxiliary rim being formed with a corresponding peripheral slit or with a series of openings whereby the air-space between the two rims is put into communication with thespace between the auxiliary rim and the tire. l The said space is provided with f strips or flaps of suitable elastic material, sucht/as soft rubber, secured along one ledge to the' Outer surface of the` auxiliary rim so as to'frnvalves to prevent the escape -of the' air, o r the said iiaps may be made in one piece so as to form a completeair-tight chamber when cemented onto the auxiliary rim. A

5o' In .the accompanying drawingv there-l is `shown a section `oi a tire and rim made according to my invention.

a is the wheel-rim, which is made semicircular in cross-section, and b b the lateral l flanges formed thereon. cis the auxiliary or su pplementary rim, alsosemicircular .in crosswith whichv it is provided.

cisthe tire, which is formed 'of rubberl or other suitable elastic material and witha-V thickened tread portion, the said-tire being of horseshoe shape, as shown, and f f are the lateral ribs. or extensions upon thesaid tire,

Awhich ribs enter the lateral anges d d'upon the auxiliary. rim c of the tire and are designed, together with the said lateral ianges,

to be secured by split pins, rivets,'or the like Y to the lateral flanges b b of the wheel-rim c.

g is the inner or air tube, arranged between the two rims a and c, the said tube being split along its outer periphery, as clearly shown, and h is the peripheral slitor "series of holes formed in the auxiliary rim c for placing the s the tire be punctured too severely forimmed iate temporary repair the .weight .of the vehicle compresses the Atire eagainst the rim c, so that it is not rendered useless, as is thecase with pneumatic tires, of ordinary construc tion.

Having now particularly described and asand in what manner the same is to be per4 formed, .I declare 'that what I claim is- A 1. In a pneumatic tire, the combination of certained the nature of my said invention a rim having lateral anges, ofan auxiliary or supplementary rim perforated around its periphery and having lateral anges or recesses, of an outer covering having lateral Ioo flanges to engage inthe lat-eral recesses ofthe other vehicles consisting of the rims a and c, v auxiliary rim, of strips of suitable material tire proper e, split inner or air tube g and 1o cemented at one end to the outer surface of vvalve iaps or strips z', e'. the auxiliary rim andvof an inner air-tube ar- 5 ranged between the two rims and split around FREDERICK RICH ARD SIMMS' its outer periphery,substantially as described. Witnesses:

2. The described pneumatic tire and rim 1l. W. SCOTT, for the wheels of motor-oars, velocipedes and ARTHUR G.- HEMNG. 

